b3954c33a7
Added a note. Change-Id: Ia30d9f88c8ff0b32a921cb190fab3d320cad9a25 Signed-off-by: Dinesh Neelapu <dinesh.neelapu@windriver.com>
9.9 KiB
Configure NTP Servers Using the CLI
You can use the CLI to add or update a list of servers and services.
NTP Servers
You can specify up to three servers using the CLI or the Horizon Web
interface. For more information, see Configure NTP Servers Using Horizon <configuring-ntp-servers-and-services-using-horizon>.
To view the existing server configuration, use the following command.
~(keystone_admin)]$ system ntp-show
+--------------+----------------------------------------------+
| Property | Value |
+--------------+----------------------------------------------+
| uuid | c65d5dcd-de6c-4ff9-89a1-c385dd4c7310 |
| ntpservers | 0.pool.ntp.org,1.pool.ntp.org,3.pool.ntp.org |
| isystem_uuid | a16d7b07-1d42-41cf-b001-04bc25216a2b |
| created_at | 2019-12-07T18:31:14.242942+00:00 |
| updated_at | 2019-12-07T18:42:09.244572+00:00 |
+--------------+----------------------------------------------+Note
When you change the system configuration you must lock/unlock all hosts. This process requires a swact on the controllers. During a host swact the system may raise alarms.
To change the server IP addresses, use the following command syntax. The ntpservers option takes a comma-delimited list of server names.
~(keystone_admin)]$ system ntp-modify \
ntpservers=<server_1[,server_2][,server_3]>For example:
~(keystone_admin)]$ system ntp-modify ntpservers=0.pool.ntp.org,1.pool.ntp.org,3.pool.ntp.orgNTP Service
Clock synchronization, synchronizes time across multiple systems in a network. The default value for clock_synchronization is ntp.
Note
and is configured per host. Lock/unlock the host when updating clock_synchronization for the host.
Use the following command to change the clock synchronization on the host:
~(keystone_admin)]$ system host-update controller-0 clock_synchronization=ntp
+-----------------------+--------------------------------------------+
| Property | Value |
+-----------------------+--------------------------------------------+
| action | none |
| administrative | unlocked |
| availability | available |
| bm_ip | None |
| bm_type | None |
| bm_username | None |
| boot_device | /dev/disk/by-path/pci-0000:00:1f.2-ata-1.0 |
| capabilities | {u'stor_function': u'monitor'} |
| clock_synchronization | ntp |
| config_applied | 16dfa935-e21e-4737-90f4-1afa83a3091b |
| config_status | None |
| config_target | 16dfa935-e21e-4737-90f4-1afa83a3091b |
| console | ttyS0,115200n8 |
| created_at | 2020-02-27T15:00:07.108865+00:00 |
| hostname | controller-0 |
| id | 1 |
| install_output | text |
| install_state | None |
| install_state_info | None |
| inv_state | inventoried |
| invprovision | provisioned |
| location | {} |
| mgmt_ip | 192.168.204.3 |
| mgmt_mac | 00:00:00:00:00:00 |
| operational | enabled |
| personality | controller |
| reserved | False |
| rootfs_device | /dev/disk/by-path/pci-0000:00:1f.2-ata-1.0 |
| serialid | None |
| software_load | nn.nn |
| subfunction_avail | available |
| subfunction_oper | enabled |
| subfunctions | controller,worker |
| task | |
| tboot | false |
| ttys_dcd | None |
| updated_at | 2020-02-28T17:21:42.374847+00:00 |
| uptime | 7403 |
| uuid | cc870915-b8dd-4989-914c-7095eabe36e8 |
| vim_progress_status | services-enabled |
+-----------------------+--------------------------------------------+To view the service configuration, use the following command:
~(keystone_admin)]$ system host-show controller-0
+-----------------------+------------------------------------------------+
| Property | Value |
+-----------------------+------------------------------------------------+
| action | none |
| administrative | unlocked |
| availability | available |
| bm_ip | None |
| bm_type | None |
| bm_username | None |
| boot_device | /dev/disk/by-path/pci-0000:04:00.0-sas |
| |-0x5001e6754aa38000-lun-0 |
| capabilities | {u'stor_function': u'monitor', u'Personality': |
| | u'Controller-Active'} |
| clock_synchronization | ntp |
| config_applied | 590f29ad-19e2-43ee-855e-f765814e3ecd |
| config_status | Config out-of-date |
| config_target | cd18ec25-c030-4b0c-862b-c39726275743 |
| console | ttyS0,115200n8 |
| created_at | 2020-02-27T18:32:58.752361+00:00 |
| hostname | controller-0 |
| id | 1 |
| install_output | text |
| install_state | None |
| install_state_info | None |
| inv_state | inventoried |
| invprovision | provisioned |
| location | {} |
| mgmt_ip | 192.168.204.3 |
| mgmt_mac | 00:1e:67:54:aa:39 |
| operational | enabled |
| personality | controller |
| reserved | False |
| rootfs_device | /dev/disk/by-path/pci-0000:04:00.0-sas |
| | -0x5001e6754aa38000-lun-0 |
| serialid | None |
| software_load | nn.nn |
| task | |
| tboot | false |
| ttys_dcd | None |
| updated_at | 2020-02-28T15:17:06.658008+00:00 |
| uptime | 159970 |
| uuid | 92c86da2-adb7-4fb2-92fc-82759e25108d |
| vim_progress_status | services-enabled |
+-----------------------+------------------------------------------------+Note
When server is unreachable, alarm 100.114 is raised, and it will be cleared once the server becomes reachable.
It is possible to take some time to raise or clear alarm 100.114.
related alarm depends on the ntpq command output and
follows specification. The 8-bit register in the poll is used to
determine the server's reachability. If the register contains any
nonzero bits, the server is considered reachable; otherwise, it is
considered unreachable.
The current maximum poll interval is 128 seconds. As a result, it might take about 30 minutes to raise or clear alarm 100.114 in some cases. However, this is expected behavior.